Home / 631,865.13-871,973.82-345,386.36

Finding the Fourth Proportional to 631,865.13, 871,973.82 and 345,386.36

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Solution

The fourth proportional to 631,865.13, 871,973.82 and 345,386.36 is: 476,633.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,865.13 : 871,973.82 = 345,386.36 : x
  2. Step 2: Convert to fraction form
    631,865.13/871,973.82 = 345,386.36/x
  3. Step 3: Cross multiply
    631,865.13x = 871,973.82 × 345,386.36
  4. Step 4: Simplify right side
    631,865.13x = 301,167,859,345.23
  5. Step 5: Solve for x
    x = 301,167,859,345.23/631,865.13
  6. Step 6: Final answer
    x = 476,633.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.